问题
Was going through Android documentation and had few doubts:
- Using "Wi-Fi direct" in Android 4.0+, is it possible to establish connection pragmatically with NON "Wi-Fi direct" enabled network device?
For example, is it possible to communicate with older smartphone (having Android 2.2 OS) with the latest 4.1 based Android Smartphone. I want to use Wi-Fi direct capablities to perform FTP operation on various kinds of smartphones (android, iOS)
Thanks.
回答1:
I am using an APP named FileDrop which I think has the similar feature set you are looking for.
This is how it works: 4.1 based phone becomes GO and generates a Wi-Fi password to allow older phone to connect to it using legacy Wi-Fi just like connecting to a Wi-Fi access point. You can also use QR scanning instead of manual key-in of the password.
I hope you can get a sample code from them.
Sorry for no real help.
来源：https://stackoverflow.com/questions/21378117/android-establish-wi-fi-direct-connection-with-networked-devices